North Korean leader Kim Jong-un lambasted international sanctions on his country for the second time in a week during his visit to construction sites in a northern town, the North's state media reported Sunday.

Accompanied by his wife Ri Sol-ju and ranking officials, Kim inspected a large-scale redevelopment project in Samjiyon County, which is known as the birthplace of his father and former ruler Kim Jong-il, the Korean Central News Agency said.

"The hostile forces' persistent sanctions and obstructive moves come as a serious setback to the advance of our socialism," Kim was quoted as saying. "But the zeal of the elated people who rose up like a mountain in response to the party's call is making a history of legendary miracles despite the most difficult conditions."